Alex, David, and Jennifer each have a collection of baseballs. David has 12 less than twice as many as Alex. Jennifer has 8 more than half as many as Alex. All together they have 80 baseballs. Select the equation that will help you learn how many baseballs Jennifer has. 2A − 12 = 12A + 8

2D − 12 + 12J + 8 + A = 80

2A − 12 + 12A + 8 = 80

2A − 12 + 12A + 8 + A = 80

you can not drow on this

step-by-step explanation:

answer: i don't understand. what are the options

step-by-step explanation:

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional